65213144131256 has 32 divisors (see below), whose sum is σ = 133524314164080. Its totient is φ = 29612606668800.

The previous prime is 65213144131243. The next prime is 65213144131273.

65213144131256 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65213144131256² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371556425 + ... + 371731896.

Almost surely, 2^{65213144131256} is an apocalyptic number.

It is an amenable number.

65213144131256 is an abundant number, since it is smaller than the sum of its proper divisors (68311170032824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65213144131256 is a wasteful number, since it uses less digits than its factorization.

65213144131256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743289335 (or 743289331 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The spelling of 65213144131256 in words is "sixty-five trillion, two hundred thirteen billion, one hundred forty-four million, one hundred thirty-one thousand, two hundred fifty-six".